Home / 13,825.30-19,079.22-8,161.43

Finding the Fourth Proportional to 13,825.30, 19,079.22 and 8,161.43

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Solution

The fourth proportional to 13,825.30, 19,079.22 and 8,161.43 is: 11,262.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.30 : 19,079.22 = 8,161.43 : x
  2. Step 2: Convert to fraction form
    13,825.30/19,079.22 = 8,161.43/x
  3. Step 3: Cross multiply
    13,825.30x = 19,079.22 × 8,161.43
  4. Step 4: Simplify right side
    13,825.30x = 155,713,718.48
  5. Step 5: Solve for x
    x = 155,713,718.48/13,825.30
  6. Step 6: Final answer
    x = 11,262.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.